On Fairness Evaluation For Road Traffic System

With the high-speed economic development of china, the traffic problem have become increasingly prominent, and become one of the bottleneck problem of economic sustainable development; how to solve the traffic problem have cause more attention. Among them, the main contradiction is the one between the travel demand growth and limited road resource, and the key point to solve the traffic problem is how to find ways to eliminate this contradiction. In our country, the salvation of traffic system problem depends largely on government policy and tactics, and the traffic fairness and effective allocation of resources are undoubtedly the main considerations in policy formulation. In this paper, firstly we show the relevant definition in road traffic system to lead to the concept of traffic equity, then we carry on the relevant division traffic equity processed from simple to more complex, we analyze the correlative factors and provide certain reference to optimization of transportation system, in this foundation, we propose the traffic fairness assessment method and the corresponding evaluation index, establish the traffic fair evaluation system. In order to manifest equity, this article will define traffic fairness on the fair relationship existing in occupies traffic resource and the result of traffic resources'sharing for each social member. At the same time, traffic activities inevitable involves internal costs and external factors, among which internal costs shall be basically borne by the bicycler, the unfairness of the traffic system is primarily caused by external factors.Based on the meaning of traffic fairness, This article gives the analysis from the five sides:occupation of transport resources, energy and fuel consumption, air pollution, traffic accidents and groups of weakness. And makes use of the Gini coefficient and Lorenz curve for quantitative evaluation. The article gives a case study for the Zibo city, empirically analyzes the traffic condition fairness according to it's relevant data in Zibo city. Respectively specific quantitative evaluates the fairness of the road area per capita between people using of different vehicles and the pure residents. And shows the level of fairness by using accurate Gini coefficient and intuitive Lorenz curve. Based on the analysis in the evaluation,we present the concept of Pareto optimality to improve the fairness, give a dialectical analysis of the relationship between transport fairness and transport efficiency, respectively from the small cars development strategy and bus development strategy propose to improve equity, efficiency optimization methods and measures.